If you owned a Sega console in the 90's, Columns Deluxe [App Store] will be a complete blast from the past. Originally the only game worth playing that I owned for my Game Gear, I've probably spent more time over the years in Columns than any other match three.
Columns has appeared in several classic arcade collection games in recent generation consoles. And the original, as well as its sequels have been ported to nearly every other video game console in one form or another before finally winding up on the App Store.
There's no reason not to take advantage of the 4th of July Sale and download Columns Deluxe while it's free. Although, the experience may not quite be the same as it was on the Game Gear without needing to constantly be swapping through six AA batteries to play for more than an hour or two at a time.
App Store Link: Columns Deluxe, Free